8989830 has 48 divisors (see below), whose sum is σ = 23783760. Its totient is φ = 2355264.

The previous prime is 8989817. The next prime is 8989837. The reversal of 8989830 is 389898.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4464 + ... + 6156.

It is an arithmetic number, because the mean of its divisors is an integer number (495495).

Almost surely, 2^8989830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8989830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11891880).

8989830 is an abundant number, since it is smaller than the sum of its proper divisors (14793930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8989830 is a wasteful number, since it uses less digits than its factorization.

8989830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 8989830 is about 2998.3045208918. The cubic root of 8989830 is about 207.9300029509.

The spelling of 8989830 in words is "eight million, nine hundred eighty-nine thousand, eight hundred thirty".